I don't think this has any incest but is rather a translation error, we wouldn't call a stranger "uncle" but in Japan the word "oji-san" (uncle) can also be used for a middle aged man who has no relation to you. And based on the their interaction, I don't think they're blood related.
I'm so glad I found this because the art is to die for! And I love military BL (especially when the author tries to make it realistic).
I don't think this has any incest but is rather a translation error, we wouldn't call a stranger "uncle" but in Japan the word "oji-san" (uncle) can also be used for a middle aged man who has no relation to you.
And based on the their interaction, I don't think they're blood related.
I'm so glad I found this because the art is to die for! And I love military BL (especially when the author tries to make it realistic).